Alexander Sergeyevich Taneyev (Russian: Алекса́ндр Серге́евич Тане́ев, also transliterated as Taneiev, Tanaiev, Taneieff, and Taneyeff in English; January 17, 1850, Saint Petersburg – February 7, 1918, Petrograd) was a Russian state official and composer of the late Romantic era, specifically of the nationalist school. Among his better-known works were three string quartets, believed to have been composed between 1898–1900. Alexander Taneyev is not well known outside Russia. His name is often confused with that of his distant cousin Sergei Taneyev (1856–1915).